/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraParameterPanelTypes.h
struct FNiagaraParameterPanelItem : public [FNiagaraParameterPanelItemBase](API\Plugins\NiagaraEditor\FNiagaraParameterPanelItemBase)
bool
bExternallyReferenced
For script variables; if true, the variable is sourced from a script that is not owned by the emitter/system the parameter panel is referencing.
bool
bSourcedFromCustomStackContext
For script variables; if true, the variable is a member of a custom stack context for an emitter/system.
EParameterDefin...
DefinitionMatchState
The relation of this parameter item to all parameter definitions it is matching.
int32
ReferenceCount
Count of references to the variable in graphs viewed by a parameter panel view model.